<?hh

function dumpcourse($current) {
	$title = ($current->nodeType != XML_TEXT_NODE && $current->hasAttribute('title')) ? $current->getAttribute('title'):"no title";
	echo "Course: $title:";echo get_class($current), "\n";
	echo "~";var_dump($current->textContent);
}

<<__EntryPoint>>
function main() {
  $xml = <<< EOXML
<?xml version="1.0" encoding="ISO-8859-1"?>
<courses>
	<course title="one">
		<notes>
			<note>c1n1</note>
			<note>c1n2</note>
		</notes>
	</course>
	<course title="two">
		<notes>
			<note>c2n1</note>
			<note>c2n2</note>
		</notes>
	</course>
</courses>
EOXML;

  $dom = new DOMDocument();
  $dom->loadXML($xml);
  $root = $dom->documentElement;

  $children = $root->childNodes;
  $len = $children->length;
  echo "original has $len nodes\n";
  for ($index = $children->length - 1; $index >=0; $index--) {
    echo "node $index\n";
    $current = $children->item($index);
    dumpcourse($current);
    if ($current->nodeType == XML_TEXT_NODE) {
      $noderemoved = $root->removeChild($current);
    }
  }
  $children = $root->childNodes;
  $len = $children->length;
  echo "after text removed it now has $len nodes\n";
  for ($index = 0; $index < $children->length; $index++) {
    echo "node $index\n";
    $current = $children->item($index);
    dumpcourse($current);
  }
}

